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Method of coolant expenditure measuring in work control system of nuclear reactor
https://doi.org/10.32446/0368-1025it.2021-11-30-37
Abstract
The article discusses a design of an optical flow meter for monitoring the flow rate of a coolant in a pipeline, both in laminar and turbulent flow regimes at different temperatures. A method for measuring the flow rate of the coolant based on the registration of γ-radiation from changes in its oxygen activity has been developed. The design of sensors for recording oxygen activity based on optical fiber and a method for their placement on the pipeline are proposed. The optimal value of doping the core of an optical fiber with germanium oxide for measuring the flow rate of the coolant q at various intensities of oxygen activity in it has been established. A method is proposed for restoring the transparency of an optical fiber when measuring q in the presence of γ-radiation. The technique for measuring q is considered in detail and the features of its implementation are noted. The results of investigating the operation of an optical flow meter on an experimental stand are presented
About the Authors
R. V. Davydov
Peter the Great Saint Petersburg Polytechnic University
Russian Federation
Russian Federation
Roman V. Davydov
Saint Petersburg
I. M. Gureeva
Peter the Great Saint Petersburg Polytechnic University
Russian Federation
Russian Federation
Irena M. Gureeva
Saint Petersburg
V. V. Davydov
Peter the Great Saint Petersburg Polytechnic University;
All Russian Research Institute of Phytopathology
Russian Federation
Russian Federation
Vadim V. Davydov
Saint Petersburg
B. Vyazemy, Moscow Region
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Review
For citations:
Davydov R.V., Gureeva I.M., Davydov V.V. Method of coolant expenditure measuring in work control system of nuclear reactor. Izmeritel`naya Tekhnika. 2021;(11):30-37. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-11-30-37
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